Fanuc Corporation

Shogo Inoue

Kunio Tanaka

Norinaga Mutai

Masaki Tanabe

Arito Hashimoto

Takashi Hosaka

A controller that controls a machine detects an event that has occurred in the controller or the machine to compose and store event information that contains the event. Upon receiving an e-mail acquisition request from a terminal, the controller retrieves the stored event information, composes an e-mail that contains the event information, and transmits the e-mail directly to the terminal.

Controller for transmitting information on machine or controller via e-mail

An operation management system configured to acquire measured values of a workpiece from a numerical controller which controls a machine tool to measure the workpiece is provided with a measurement macro receiving unit configured to read a measurement macro for controlling the measurement from the numerical controller, a measurement macro analysis unit configured to analyze the measurement macro to identify the name of a measurement result variable loaded with the measured values, and a measurement result read-out unit configured to read out the value of the measurement result variable from the numerical controller. The operation management system easily acquires the result of the workpiece measurement from the numerical controller.

Operation management system and measurement system

A numerical controller includes a numerical control unit, a DNC operation management unit, and first and second communication units. The first and second communication units receive the same NC program from a host through corresponding communication paths. The DNC operation management unit acquires the NC program from a reception data buffer included in one of the communication units to transfer the NC program to the numerical control unit, and when a failure occurs in the communication path used by the communication unit, an acquisition destination of the NC program is switched to a reception data buffer of the other communication unit.

Numerical controller with DNC operation function using a plurality of communication lines

A controller (node) divides all nodes connected to a network into several network groups, and gives the division network groups network identification numbers for identifying them. A token frame contains a network identification number. This network identification number enables data to be shared among all the nodes connected to the network while a token for each network group is circulated only in the network group.

Controller capable of reducing communication cycle time

A numerical control device for controlling a machine tool while sequentially reading out an NC program from a host computer includes an external program invoking unit configured to invoke an encrypted NC program, a communication setting information storing unit configured to store setting information for communicating with the host computer, an NC program acquisition determining unit, an encrypted NC program acquisition request transmitting unit, an encrypted NC program decrypting unit, and an NC program display prohibiting unit.

Numerical control device

A controller and a display device are connected to each other by a network. The controller comprises a network control program which controls a network control section to communicate with the display device for each of a plurality of operation modes, including an initialization mode, a normal action mode, and an alarm mode. Various data, such as operation mode information for the controller, are transmitted to the display device connected by the network through the network control section and display data is displayed on the display device.

Growing community of inventors

Minamitsuru-gun, Japan

Shogo Inoue